Sony CFD-S28 - Cd Radio Cassette-corder User manual

MICROFILM
SERVICE MANUAL US Model
E Model
SPECIFICATIONS
CFD-S28
CD Model Name Using Similar Mechanism NEW
Section CD Mechanism Type KSM-213CDM
Optical Pick-up Name KSS-213C
TAPE Model Name Using Similar Mechanism CFD-V10
Section Tape Transport Mechanism Type MF-V10-117
Ver 1.0 1999. 03
– Continued on next page –
CD RADIO CASSETTE-CORDER

– 27 – – 28 –
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•¢: internal component.
•U: B+ Line.
•H: adjustment for repair.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveform are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : AM
• VoltagesaretakenwithaVOM(Inputimpedance10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveform is taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveform.
• Signal path.
F: FM
f: AM
6-5. SCHEMATIC DIAGRAM – TUNER Section – •See page 45 for IC Block Diagrams.
• Waveform
1IC2 @º XIN (FM mode)
500 mV/DIV, 5 µs/DIV
1.8 Vp-p
13.3 µ s
(Page 37)
(Page 33π )

CFD-S28
– 32 – – 33 – – 34 –
6-7. SCHEMATIC DIAGRAM – MAIN Section (1/3) – • See page 45 for IC Block Diagrams.
• Waveforms
– MAIN Board (1/3) –
1Q323 Collector (REC mode)
20 V/DIV, 20 µs/DIV
2Q322 Emitter, Base
Q323 Emitter, Base
Q324 Collector (REC mode)
5 V/DIV, 20 µs/DIV
3Q324 Base, Q325 Collector (REC mode)
50 mV/DIV, 10 µs/DIV
4Q301 Base (REC mode)
500 mV/DIV, 10 µs/DIV
5Q301 Collector (REC mode)
1 V/DIV, 10 µs/DIV
34.4 Vp-p
20.8
µ s
9.8 Vp-p
20.8
µ s
128 mVp-p
20.8 µ s
1 Vp-p
20.8
µ s
20.8 µ s
3.6 Vp-p
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•2: nonflammable resistor.
•C: panel designation.
•U: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : TAPE PLAY
( ) : TAPE REC
• Voltagesare takenwith aVOM(Inputimpedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F:TUNER (FM/AM)
E:TAPE PLAY
a: TAPE REC
J: CD PLAY
Note: The components identified by mark !or dotted line
with mark !are critical for safety.
Replace only with part number specified.
(Page 28)
(Page 36) (Page 37) (Page 44)

CFD-S28
– 35 – – 36 –
6-8. SCHEMATIC DIAGRAM – MAIN Section (2/3) – • See page 39 forWaveforms. •See page 46 for IC Block Diagrams.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•U: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
∗: Impossible to measure
• Voltagesaretakenwith aVOM(Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J: CD The components identified by mark !or dotted
line with mark !are critical for safety.
Replaceonlywithpart number specified.
(Page 33) (Page 37)

CFD-S28
– 37 – – 38 –
6-9. SCHEMATIC DIAGRAM – MAIN Section (3/3) –
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•C: panel designation.
•U: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
( ) : TAPE PLAY
< > : CD PLAY
• VoltagesaretakenwithaVOM(Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
(Page 33) (Page 36)
(Page 28)

– 39 –
• Waveforms
– MAIN Board (2/3) –
1IC701 $∞ TEO (CD PLAY mode)
100 mV/DIV, 1 ms/DIV
2IC701 #£ RF O, IC703 #∞ RF
(CD PLAY mode)
200 mV/DIV, 500 ns/DIV
3IC701 1FEO (CD PLAY mode)
50 mV/DIV, 100 ns/DIV
4IC703 @¡ MDP (CD PLAY mode)
1 V/DIV, 5 µs/DIV
5IC703 &º XTAI (CD PLAY mode)
2 V/DIV, 20 ns/DIV
6IC703 $£ BCK (CD PLAY mode)
2 V/DIV, 200 ns/DIV
7IC703 #ª LRCK (CD PLAY mode)
5 V/DIV, 20 µs/DIV
Approx.
100 mVp-p
1.2 ± 0.1 Vp-p
Approx.
200 mVp-p
2.8 Vp-p
7.6
µ s
4.3 Vp-p
59 ns
6.4 Vp-p
472 ns
6.6 Vp-p
22.8 µ s
– MAIN Board (3/3) –
1IC501 #¡ EXTAL
2 V/DIV, 100 ns/DIV
4 Vp-p
239 ns
2IC501 &¢ TEX
1 V/DIV, 20 µs/DIV
2.9 Vp-p
30.5
µ s

CFD-S28
– 43 – – 44 –
6-11. SCHEMATIC DIAGRAM – POWER SUPPLY Section –
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•2: nonflammable resistor.
•U: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltages are dc with respect to ground under no-signal
conditions.
• VoltagesaretakenwithaVOM(Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
Note: The components identified by mark !or dotted line
with mark !are critical for safety.
Replace only with part number specified.
(Page 34)

– 45 – – 46 –
• IC Block Diagrams
–TUNER Board –
IC1 TA2104AN
GND1
3
2
1
IF REQ
AM
MIX
FM RF IN
AM LOW OUT
5
4
MIX OUT
VCC2
AM IF IN
8
7
6
FM IF IN
GND2
10
9
AGC
QUAD
12
11
R OUT
L OUT
FM RF OUT
22
23
24
20
21
17
18
19
15
16
13
14
AM RF IN
VCC1
FM OSC
ST IND
OSC OUT
AM OSC
IF OUT
LPF2/MO-ST
MPX IN
DET OUT
LPF1/BAND
FM
MIX FM
OSC
LEVEL
DET
AM
DET
MUTE
FM
DET
ST/MO
FM/AM
AM
OSC
AGC
SW
ST
1/8
BUFF
BUFF
DIVIDE
DECODE
VCO
IF BUFF
AF BUFF
AF
FM RF
AM IF
FM IF
IC2 LC72137-D
12
11
10
9
8
7
6
5
4
3
2
1
13
14
15
16
17
20
21
UNLOCK
DETECTOR POWER ON
RESET
UNIVERSAL
COUNTER
CCB
I/F
NC
CE
DI
CL
DO
XOUT
22 NC
AOUT
XIN
AIN
PD
VSS
VDD
B04
FMIN
AMIN
B01
B02
B03
I01
I02
IFIN
PHASE
DETECTOR
CHARGE
PUMP
REFERENCE
DIVIDER
SWALLOW
COUNTER
1/16,1/17
4BITS
12BITS
PROGRAMMABLE
DIVIDER
DATA SHIFT REGISTER
LATCH
1/2
18
19
– MAIN Board –
IC301 TA2068N
1
2
3
6
9
10
11
12
8
7
4
5
22
TAPE
TAPE
TAPE
BUF AMP
A1
BUF AMP
A2
NAB
AMP1
NAB
AMP2
23
24
15
14
13
21
20
17
16
RADIO
BUF AMP
B1
BUF AMP
B2
MUTE
MUTE
ON
ON
ON
7dB
26dB
26dB
MONITOR
AMP
LOGIC
18
19
MUTE
7dB
MONITOR
AMP
LINE
TAPE RADIO
LINE
ALC2 ALC1
DET
REC
AMP1
REC
AMP2
2.1
REF
AMP
MIC
AMP1
LINE
IN1
INT
EXT
RADIO
IN1
REC
PLAY
PRE
OUT1
PRE
OUT2
RADIO
LINE
RADIO
IN2
LINE
IN2
MIC
IN
TAPE
TAPE
VCC
ALC
NAB
OUT1
NAB
NF1
REC
OUT1
NAB
IN1
VREF
GND
NAB
IN2
REC
OUT2
NAB
NF2
NAB
OUT2
MIC
NF
IC302 BH3854AS
4
5
6
7
8
9
10
11
12
13
14
15
16
TONE
VR
MATRIX
SURROUND
CONTROL
1
2
3
AGND
IN1
NF1
BVN1
BIN1
BVO1
TIN1
TVO1
OUT1
VCC
SC
PORT1
PORT2
PORT3
PORT4
DGND
24
23
22
21
20
19
18
17
TONE
VR
FILTER
IN2
NF2
BVN2
BIN2
BVO2
TIN2
TVO2
OUT2
VC
TC
BC
CK
DATA
LATCH
VREF
32
31
30
29
28
27
26
25
IC701 CXA1992BR
FZC
VC
TDFCT
TZC
ATSC
TEI
LPFI
TEO
VEE
EI
E
F
FE
BIAS
SL P
SL M
SL O
ISET
VCC
XRST
DATA
XLT
CLK
LOCK
SENS2
SENS1
C. OUT
VCC
DFCTO
IFB1 – IFB6
BAL1 – BAL4
TOG1 – TOG4
FS1 – FS4
TG1 – TG2
TM1 – TM7
PS1 – PS4
TGH
TGL
BALH
BALL
ATSC
DFCT
TM1
TG1
FS2
IFB1 – IFB6
VCC
VEE
VCC
VEE
VEE
PD 2
I-V AMP
FOK
CC2
CC1
CB CP
RF O RF I
RFTC
PD2
PD1
PD
LD
RF M
TA O
TA M
FSET
TG2
TGU
SRCH
FEO
FEI
FDFCT
FGD
FLB
FE O
FE M
TZC
FZC FOL
FOH
MIRR
LDON LPCL
LPC
TGFL
DFCT1
CC1
1 2 3 45678 9 10
26
25
24
23
22
21
20
19
18
17
16
15
14
40
41
42
43
44
45
46
47
48
49
50
51
52
39
PD 1
I-V AMP
38
PD
AMP
37
LD
AMP
LASER
POWER
CONTROL
FOCUS BIAS
WINDOW
COMPARATOR
FOCUS ERROR
AMP
F I-V
AMP
E I-V
AMP TGFL TRACKING GAIN
WINDOW
COMPARATOR
E-F BALANCE
WINDOW
COMPARATOR
ATSC
WINDOW
COMPARATOR
TZC
COMPARATOR
TRACKING PHASE
COMPENSATION
CENTER
VOLTAGE
GENERATOR
FZC
COMPARATOR
FOCUS PHASE
COMPENSATION CHARGE UP
FSET
ISET
IIC DATA REGISTER, INPUT SHIFT REGISTER,
ADDRESS DECODER, SENSE SELECTOR,
OUTPUT DECODER TTL
↓
IIL
IIL
↓
TTL
IIL
↓
TTL
RF SUMMING
AMP FOCUS OK
COMPARATOR
PEAK/BOTTOM
HOLD
PEAK/BOTTOM
HOLD
DEFECT
AMP
MIRR
COMPARATOR
36 34 31 30 29 28 27
35 33 32
BAL1 – BAL4
TM6
TM2
VCC
VEE
TM5
11 12 13
TG2
TM4
VCC
VEE
TM3
FS1
VCC
VEE
TOG1 – TOG4
TM7
FS4
DFCT
+
–
+ –

– 47 –
REGULATOR
BIAS
DRIVER
MUTE
LEVEL
SHIFT LEVEL SHIFT
LEVEL
SHIFT LEVEL
SHIFT
1
2122 181920 17
2 3 4 5 6 7 8 9
NC
VCC
BIAS IN
VIN1’
VO1 (+) VO1 (–)
VIN1
VO2 (–)
GND
10
VO2 (+)
11
VIN2’
12
RESET
13
REG-B
14
REG OUT
15
MUTE
16
FIN
REGULATOR
BIAS, T.S.D.
MONITOR
NC
GND
VIN3’
VIN3
VO3 (+)
VO3 (–)
29
VIN4
28
VO4 (+)
27
VO4 (–)
26
NC
25
OP IN (–)
24
OP OUT
23
GND
30
VIN4+’
31
VCC
32
FIN
+ –
+
–
+ –
+ –
+ –
+ – + –
IC702 BA6898FP

– 48 –
IC703 CXD2589Q
PWM
PWM
1 2 3 4 5 6 12 13 14 15 16 17 19 20
34
27
24
23
25
21
61
63
64
66
67
68
69
70
71
72
73
74
75
77
78
79
80
OSC
62
65
76
7 8 9 10 11 18
22
28
26
33
32
31
30
29
36
35
40
39
38
37
45 44 43 42 4150 49 48 47 4655 54 53 52 5159 58 57 5660
EFM
DEMODULATOR
ERROR
CORRECTOR 16k RAM
D/A
INTERFACE
CLOCK
GENERATOR
SERVO
AUTO
SEQUENCER
CPU
INTERFACE
DIGITAL
OUT
SUB CODE
PROCESSOR
3rd-ORDER
NOISE SHAPER
OVER SAMPLING
DIGITAL FILTER
SERIAL-IN
INTERFACE
DIGITAL
CLV
OSC
DIGITAL
PLL
ASYMMETRY
CORRECTOR
LRCKI
LRCK
ASYO
ASYI
BIAS
RF
AVDD
CLTV
AVSS
FILI
FILO
PCO
V16M
VCTL
VCKI
VPCO1
TES1
TES0
PWMI
MDP
VDD
SYSM
AVSS
AVDD
XTAI
XVDD
AVSS
LOUT1
AIN1
AOUT1
XTAO
XVSS
AVSS
LOUT2
AIN2
AOUT2
AVDD
AVSS
XRST
VDD
VSS EXCK SBSO SCOR WFCK ENPHI EMPH DOUT C4M XTSL C2PO GFS XPCK XUGF VDD VSS BCKI BCK PCMDI PCMD
VSS
LMUTE
RMUTE
SQCK
SQSO
SENS DATA
XLAT
CLOK
SEIN
CNIN
DATO
XLTO
CLKO
SPOA SPOB XLON
FOK
VDD
VSS